Pentair Quad DE 60 Filter Cartridge - 15 Square Feet size-in-gallons_51-100 This is a Tank O-Ring

This is a Tank O-Ring for Pentair Sta-Rite System:3 Modular SD Series D

when filled with water

Use the included standard anchor cap to give the deck a flushed look when the starting platform is removed

This is a Taylor Chlorine Reagent #2

Pentair Quad DE 60 Filter Cartridge - 15 Square Feet size-in-gallons_51-100 This is a Tank O-RingThe Pentair 178654 Cartridge Filter Element for Quad DE 60 Filters has a media area of 15 Square Feet and is made of superior reinforced polyester pleated material with polyurethane end caps. Pentair reusable cartridge filter elements provide a high degree of water clarity and longer filter cycles. To maintain your pool water cleanliness and clarity, Pentair genuine replacement cartridge elements are the number one choice in cartridge filtration.